Flush valve



s. P. ENR XGHT ET AL FLUSH VALVE Filed Nov 2, 1926 2 Sheets-Sheet 1 Patented Dec. 6, 1927. I

1 1 U ITED" ST-A T ES PATENT OFFICE.

STEPHEN i=7. nlvmei 'r AND JOSEPH F. DILLON, or PHILADELPHIA, PENNSY VANIA;

s ID DILLON Assieivoa 'ro sArD nnnrenr.

, "FLUSH VALVE.

, Application filed November 2, 1926. Serial No. 1 15,7157.

Our invention relates to new and useful improvements in flush valves, and has for its primary object to'provide a valve of this description whiclnwhenseated, willprevent any possibility of outflow or leakage from the water or other liquid supply, but when opened" will remain open until the liqu d pressure in the tank *or other source of sup-' ply has'been reduced to a predetermined point, when the valve will automatically s tionthat it'willbe especially adapted for use in connection with flush tanks for toilets whereby ,the passage of water from the tank 1 to the bowl is made more positive and more effective than has heretofore been the case, and to greatly reduce the chance of leakage and to eliminate repairs.

With theseand other ends in view, this invention consists in the details of construetion and combination of elements hereinafter set forth and then specifically designated by the claims. V

In order that those skilled in the art to which this invention appertains, may understand how to make and use the same, we will describe its construction in detail, referring by numeralsto the accompanying drawings forming a part of this application,in which:

Fig. l, is a perspective showing a toilet bowl of ordinary type, and illustrating themanner of coupling the tank of any suitable design to the bowl with our valve.

Fig. 2, is an elevation on a reduced scale partly brokenaway and sectioned to' illustrate the fact that said tank is air-tight or hermetically sealed with the exception of the water inlet 'pipe. I Fig. 3, is a horizontal, central longitudinal section of the flushvalve and its casing on an. enlarged scale relative to Fig. 1, relative to practice normally'full size, the actuating stem and the eccentric being left in plan.

Fig. his a section similar to Fig.3, but taken at right angles thereto showing the valveand the mechanism carried thereby in its locked-open position.

Fig. 5, is a perspective of the valveincluding the barrel carrying the same.

Fig. 6, is a view similar to Fig. 5 of the insert sleeve in whichthe barrel operates.

improved flush trapand'compress air therein by the inflow of water through the supply pipe 11.

l2represents a nipple which is secured" in any convenient or well-known'manner in the wall ofthe tank, and this nipple is in tended'to receive the internally threaded end of the outlet pipe 13, the outer end of said outlet pipe being threaded for the reception ofthe union nut 14:, said nut serving to firmly hold in place against the outer end of the outlet pipe 13, the casing 16. By this arrangement, the casing may be readily put on or removed from the outer pipe without displacing the nipple, and as hereinafter explained serves to give ready access to the working parts of the valve.

Within the casing 16 is fitted a sleeve '17 which has a portion of its wall cut away as indicated at 18 in Fig. 6'fo r the purpose hereinafter explained,-and this casing is intended to receive the barrel 19, the latter being adapted to slide freely back and forth with in the casing, and be tilted therein in such manner that the edge 20 of this barrel may be forced downward into the cut-away portion 18 and engage with'the edge 21-ofjthe forward semi-ring of said casing. Such an engagement beingclearly shown in Fig. 4.

Projecting from the head of theba-rrel is a threaded rod 22, over which; the valve 1 proper 23 is positioned, and this valve 23:

is held in place upon the head of the barrel by the weight washers 24, which are in turn .on'.- its axis by means of the guide pin'27, which as here shown is an extension of the screw 28, also holding the sleeve 17 in posia tion, while atthe same time permitting the barrel to have both a longitudinal sliding movement and a tilting movement, as will be read ly understood. p

The inner end of the barrel is provided with a verticalcross bar 29 having its outer surface curved so as to provide the shoulder 30 upon which the eccentric 31 may act to depress the inner end of the'barrel for forcviously as follows: Tater having been ad mited to the tanlr through the supply pipe 11 will compress the trapped air 1n said tank until the pressure of said air balances the pressure of the inflowing water, and this water under pressure will close and hold the valve 23 firmly against its seat 526, prevent: ing any outflow, but when the actuating handle is operated to revolve the shank 32,

the eccentric 31 will force the valve baclv ward from oil its seat, and said eccentric acting upon the shank will tilt the inner end of the barrel downward thereby canting the valve, which will permit the water to flow from the tank through the cut-away gap 37 in the under side of the barrel, and from thence through the barrel, the sleeve and the casing to the bowl 3,8.

As soon as thewatcr is flowing" at full volume through the cut-away gap, the valve will be held in its upward tilted position t"; this water llow, and so long; as said valve is thus held the edge 20 engaging with the edgfi 21 prevents the closing oi said valve. This permits the releasing ol the actuating handle, and the return of the eccentric to its normal position without cliecting the closing of the valve, but when the pressure uponthe water within the tank has dcereasedsuf'ficiently topermit the heft of; the weight washers to forcethe valve and barrel to, a normally hor zontal pos tion against thethen reduced flow of water, the valve will sm mltaneously close upon its seat under the influence of this reduced: water pressure, and be there held until the, eccentric is again op erated to force the barrel inward and its outerend downward, as already described.

Although water will be flowing into the tank through the supply pipe while the valve is open, the outlet pipe being of much greater capacity than this supply pipe, the tank will be readily en'iptied, to the, point where the valve will close, but as soon as the valve is closed, the tanlc will be again partially filled, and the maximum pressure re-established.

It is to be noted that the use of a valve of this description in connection with a toilet bowl provides for the, injection of the dash water to the, bowl under pressure, and therefore more thoroughly cleanses the bowl and produces the desired result with less water than where the ordinary gravity tank is used, and further that as the valve is seated under pressure further than that of the low head of Water 111 the ordinary tanloits seating n' ore ellective; andleakagecannot take place between the valve and its seat.

Also as the working parts are exceedingly simple requiring no accurate fits or adjustments, the wear and tear on such a valve are negligible.

The threaded rod 22 is of sullicient length to provide for the addition of washers, such as the weight wachersiad, thus providing for i increasing the weightupon the outer end of the barrel to establish the proper relation between this weightlng and the pres:

Ell

Sure in thetank for theclosingof the valve at the predetermined point. Tllisadjustment is readily made by uncoupllng the union nut 14:, removing the casing when free access will be had to the weight washers for adding thereto ortaking away from, as p to limit the revolving ol the actuating handle in one direction as to permit the eccentric from being moved in the reverse direction in order that it may always be moved inthe proper direction to fir. force the valve from oil its seat and then tiltthe innerend of the valve downward, conseit quently canting the valve upward when off; its seat.

It is to be noted; that this style of flush valve provides for the placing of; the tank in any convenient location, such as embodying it in the wall, as it is not necessary to have the tanl; in close proximity to the bowl since the outlet pipe may be of sufficient length to lead the water from the tanlr to saidbowl. y i t i Of course we do not wish to be limited to the exact details of constructionushereill) in shown as these may be varied withinthe limits of the appended claims without departing from the spiritol om; invention,

Having thus fully described our inven:

tion, what we claim asney and useful is;

l. A flush valve comprising a casing a tilting member fitted to, slide within said casing, means for forcing, the tilting member j rearward and tilting its inner end down ward, means for engaging this inner end, a valve seat, a valve carried by the tilting member adapted to close upon said sent, an open ng through the under s1de oi theytilb ing member lorcausing the outflow of water to hold the valve jfrom off its 'seat until the predetermined water pressure has been reached. y

2; In a device of the character described a casing,means for'coupling said casing to a tank,a valve seat carried by the cas1ng,ja

valve adapted to close upon said seat, a tilting member by which the valve is carried,

a sectional weight also carried. by the tilting member, means for holding] the valve from off its seat when the tilting member is tion leaving a ring portion at one end theretilted and means for tilting said member.

3. In a: device'of, the, character described, a casing, means forcoupl ng sald casing to a supply tank, a sleeve fitted within said casing, said sleeve havinga cut-away porof, a barrel fitted to slide and tilt within said sleeve, avalve carried by the barrel 4'. In a device of the character describeda cas1ng,'a sleeve fitted withm said casing, said sleeve having a cut-away portion to form an edge, a barrelfitted to slide and tilt within the casing,.1neans for preventing the rotation of the barrel, means forforcing the barrel rearward and tilting its inner end to bring about engagement with the cut-away portion of the sleeve, a valve carried by the outer end of the barrel,ra seat carried by Water pressure Wltllllt the casing against Which said valve is adapted to close, a rod projecting from the rear end of the barrel, a series of Weight washers mounted upon said rod in such manner that they may be increased or decreased and means for coupling the casing to a supply 5. In a flush valve of the character described a casing, a seat carried by said casing, a barrel fitted to slide and tilt within 5O 7 means for increasing or decreasing the said casing, a valve carried by the barrel,

weight upon the outer end of the barrel, an

actuating spindle projecting into the casing,

a'stuffing gland surrounding said stem and carrylng a gland nut and eccentrlc for sliding and tilting the valve, said eccentric being carried by the inner 'end of the stem, an

actuating handle carried by the stem and meansfor limiting the revolving of the stem.

6. In a device of the character described,

a casing; a valve seat carried by said casing,-

a valve adapted to close upon said seat; a

through its under side to permit Water to flow in an upward direction to the interior of'the tilting 'member, whereby when the valve is manually forced off its seat, the flow of waterthrough said passage-way will hold said tilting member in an upward tilted position; and means .for preventing the out-,

ward movement of the tilting member While in this tilted position.

In testimony whereof, we have hereunto afiixed our signatures.

STEPHEN P. ENBIGHT." JOSEPH F. DILLON.

tilting member carrying said valve,said tilt 'ing member having a water passage-Way 

